Eccentric Hamstring Training Enhances Sprint Performance and Neuromuscular Stability in University Football Players: A Controlled Intervention Study

Hamstring injuries are among the most frequent musculoskeletal issues in football, particularly in young athletes during phases of high training load and return-to-play. This study investigated the effects of a 6-week eccentric hamstring training program on sprint performance and neuromuscular control in university-level football players from the csu ase football team. Eighteen male student-athletes (age 20–23 years) with a history of grade ii hamstring strain in the previous season were randomly allocated to an intervention group (eccentric training + standard rehab) or a control group (standard rehab only). Performance metrics included 30-meter sprint time, isokinetic hamstring strength, and surface emg data from the biceps femoris and semitendinosus muscles during maximal voluntary contractions. Post-intervention, the eccentric group demonstrated a statistically significant improvement in sprint time (–5.4%, p < 0.01) and hamstring torque output (+14.8%, p < 0.01), with concurrent increases in emg peak amplitude and improved bilateral muscle symmetry. These findings suggest that structured eccentric loading can effectively enhance neuromuscular function and sport-specific performance in student football athletes undergoing post-injury rehabilitation.